<template>
	<view class="pics">
		<scroll-view class="left" scroll-y>
			<view :class="active===index?'active':''" 
			v-for="(item,index) in cates" :key="item.id" @click="leftClickHandle(index,item.id)">
			{{item.title}}
			</view>
		</scroll-view>
		<scroll-view class="right" scroll-y>
			<view class="item" v-for="item in secondData" :key="item.id">
				<image :src="item.img_url" @click="previewImg(item.img_url)"></image>
				<text>{{item.title}}</text>
			</view>
			<text v-if="secondData.length === 0">暂无数据</text>
		</scroll-view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				cates:[],
				active:0,
				secondData:[]
			}
		},
		onLoad() {
			this.getPicsCate()
		},
		methods: {
			async getPicsCate(){
				const res = await this.$myRequest({
					url:'/api/getimgcategory'
				})
				this.cates = res.data.message
				this.leftClickHandle(0,this.cates[0].id)
			},
			async leftClickHandle(index,id){
				this.active = index
					// 获取右侧的数据
					const res = await this.$myRequest({
						url: '/api/getimages/'+id
					})
					this.secondData = res.data.message			
			},
			previewImg(current){
				const urls = this.secondData.map(item =>{
					return item.img_url
				})
				uni.previewImage({
					current,
					urls
				})
			}
		}
	}
</script>

<style lang="scss">
	page{
		height: 100%;
	}
	.pics{
		height: 100%;
		display: flex;
		.left{
			width: 200rpx;
			height: 100%;
			border-right: 1px solid #eee;
		    view{
		    	height: 60px;
		    	line-height: 60px;
		    	color: #333;
		    	text-align: center;
		    	font-size: 30rpx;
		    	border-top: 1px solid #eee;
		    }
		    .active{
		    	background-color: $shop-color;
		    	color: #FFFFFF;
		    }
	    }
		.right{
			height: 100%;
			width: 520rpx;
			margin: 0 auto;
			.item{
				image{
					width: 520rpx;
					height: 520rpx;
					border-radius: 5px;
				}
				text{
					font-size: 30rpx;
					line-height: 60rpx;
				}
			}
		}
	}
</style>
